William McDonough's Chinese eco-city

William McDonough is arguably the world's most famous green architect and is the father of cradle to cradle design. Here he is describing one of his planned eco-cities in China. Keep watching until the end, it gets good. This is taken from McDonough's Ted talk. There's a longer version of it here. 

 [video:http://www.youtube.com/watch?v=eY4o3WzCfmM&feature=player_embedded 500x400]